Induced nuclear reactions: processes – systems – and elements – With control of reactor – By altering quantity of characteristic of fuel within...
Patent
1985-11-18
1986-12-16
Tudor, Harold J.
Induced nuclear reactions: processes, systems, and elements
With control of reactor
By altering quantity of characteristic of fuel within...
376349, 376419, 376428, 376435, G21C 704
Patent
active
046295992
ABSTRACT:
A reactor fuel assembly (15) configuration which allows cold shutdown margins to be met with minimal penalty to operating efficiency. The assembly comprises a component of fissile material distributed over a substantial axial extent of the fuel assembly and a component of neutron absorbing material having an axial distribution characterized by an enhancement in a relatively short axial zone (65) (the "cold shutdown control zone") corresponding to at least a portion of the axial region of cold shutdown maximum reactivity. The axial distribution of the component of neutron absorbing material typically is characterized by an additional enhancement in an axial zone (62) (the "hot operating control zone"). The component of neutron absorbing material is conveniently incorporated into at least some of the fuel rods (57-G1, G2, G3, G4). The enhancement in the cold shutdown control zone may be provided at least in part by one or more fuel rods (G2, G3) having absorber only in the cold shutdown control zone. The enhancement of the neutron absorbing material in the cold shutdown control zone may be supplemented by reduced fuel enrichment in the cold shutdown control zone.
REFERENCES:
patent: 3799839 (1974-03-01), Fischer et al.
Crowther Russell L.
Townsend Dennis B.
General Electric Company
James, Jr. Ivor J.
Maples John S.
Simkins Raymond G.
Tudor Harold J.
LandOfFree
Burnable absorber arrangement for fuel bundle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Burnable absorber arrangement for fuel bundle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Burnable absorber arrangement for fuel bundle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-244512